-iad

Based on Iliad.

-iad

1. Forming the name of an epic about the indicated topic.

   The Athletiad, The Congressiad, The Female Dunciad, The Mooriad, The Popiad, The Rapiad, The Scribleriad

   • 1798, James Lovell Moore, The Columbiad: an epic poem on the discovery of America and the West Indies by Columbus, in twelve books:

Based on Olympiad,[1] and perhaps also influenced by the common ending iad on units of time formed by suffixing -ad to words ending in -ium, e.g. decenniad.

-iad

1. (rare) A period of time from one occurrence of an (indicated, regularly recurrent) event to the next.
   • 1871, Walt Whitman, Democratic Vistas, page 28:

     Acrid the temper of the parties, vital the pending questions. Congress convenes; the President sends his Message; Reconstruction is still in abeyance; the nominations and the contest for the twenty-first Presidentiad draw close, [...]

• -ad

• AID, Adi, DIA, Dai, Dia, I'd-a, I'da, Ida, Ida., aid, dai, dia-

• -ad

• IPA^(key): /jad/

-iad m (plural -iadau)

1. shows the action of a verb or its result

   ‎caru (“to love”) + ‎-iad → ‎cariad (“love”)

   ‎penodi (“to appoint”) + ‎-iad → ‎penodiad (“appointment”)

   ‎cyfieithu (“to translate”) + ‎-iad → ‎cyfieithiad (“translation”)

• Nouns formed with -iad are usually countable. To translate the uncountable meaning, the verbnoun is used instead as a masculine noun.

  cyfieithiad peirianyddol ― a machine translation (i.e. the resulting text translated)

  cyfieithu peirianyddol ― machine translation (i.e. in general)

  cyfieithiad y Beibl ― Bible translation; the translation of the Bible (i.e. the version of a particular Bible)

  cyfieithu'r Beibl ― Bible translation; the translation of the Bible; translating the Bible (i.e. the practice of Biblical translation)

  gwasanaeth cyfieithu ― a translation service

  bwth cyfieithu ― a translation booth

From Proto-Brythonic *-ad, from earlier *-atus, a late (British) variant of *-ātus, used to form verbal nouns from Celtic ā-stem verbs. The -i- is secondary. Cognate with Cornish -yas.

-iad m (plural -iaid)

1. suffix indicating an agent noun: -er, -or

   ‎dal (“to hold”) + ‎-iad → ‎deiliad (“holder”)

   ‎lladd (“to kill”) + ‎-iad → ‎lleiddiad (“assassin; killer whale”)

2. person who comes from somewhere or is classed by something, -ian, -ist

   ‎Israel (“Israel”) + ‎-iad → ‎Israeliad (“Israeli; Israelite”)

   ‎Rhufain (“Rome”) + ‎-iad → ‎Rhufeiniad (“Roman”)

   ‎amldduw (“polytheistic”) + ‎-iad → ‎amldduwiad (“polytheist”)

• R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “-iad”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies